THREE-WAY CATALYST HAVING A TRIPLE LAYER COATING STRUCTURE

Title:

THREE-WAY CATALYST HAVING A TRIPLE LAYER COATING STRUCTURE

Document Type and Number:

WIPO Patent Application WO/2010/140780

Kind Code:

A2

Abstract:

The present invention relates to a three-way catalyst for purifying exhaust gas emitted by an internal combustion engine. More particularly, the present invention relates to a three-way catalyst having a triple layer coating structure, comprising a bottom layer made of an oxygen storage capacity (OSC) material, an intermediate layer made of rhodium (Rh) and formed on the bottom layer, and a top layer made of one or more materials selected from a group consisting of palladium and platinum and formed on the intermediate layer.

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Inventors:

HAN HYUN-SIK (KR)
SONG JIN-WOO (KR)
HA JAE-AU (KR)

Application Number:

PCT/KR2010/003082

Publication Date:

December 09, 2010

Filing Date:

May 17, 2010

Export Citation:

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Assignee:

HEESUNG CATALYSTS CORP (KR)
HAN HYUN-SIK (KR)
SONG JIN-WOO (KR)
HA JAE-AU (KR)

International Classes:

B01J23/46; B01J23/42; B01J23/44; B01J33/00

Domestic Patent References:

WO2009012348A1

2009-01-22

Foreign References:

JP2008100152A	2008-05-01
US20080042104A1	2008-02-21
JP2008503345A	2008-02-07

Attorney, Agent or Firm:

HAN, In-Youl (KR)
한인열 (KR)

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